w83627ef Winbond Electronics Corp America, w83627ef Datasheet - Page 32
w83627ef
Manufacturer Part Number
w83627ef
Description
Lpc Super I/o For Desktop & Server
Manufacturer
Winbond Electronics Corp America
Datasheet
1.W83627EF.pdf
(144 pages)
- Current page: 32 of 144
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6.3.1
The +12V input voltage can be expressed as following equation.
The value of R1 and R2 can be selected to 56K Ohms and 10K Ohms, respectively, when the input
voltage V
range of the 8-bit ADC.
The -12V input voltage can be expressed as following equation.
The value of R3 and R4 can be selected to 232K Ohms and 10K Ohms, respectively, when the input
voltage V
input range of the 8-bit ADC.
Both of pin 12 and pin 114 are connected to the power supply VCC with +3.3V. There are two
functions in these 2 pins with 3.3V. The first function is to supply internal (digital/analog) power in the
Monitor over 2.048V voltage
0
1
Positive Voltage Input
is 12V. The node voltage of VIN0 can be subject to less than 2.048V for the maximum input
is -12V. The node voltage of VIN1 can be subject to less than 2.048V for the maximum
Negative Voltage Input
VIN
10K@25 C, beta=3435K
1
V0
V1
=
R THM
(
V
1
CPUVCORE
VIN2
VIN3
VIN4
−
R1
. 2
CPUD+
CPUD-
048
VIN
10K, 1%
R
W83627EHF/EF, W83627EHG/EG
)
Power Inputs
15K, 1%
×
R
0
R2
R
=
CAP,2200p
Figure 6.2
3
V
R
- 26 -
+
R3
4
0
R
×
4
R
+
1
R
. 2
AUXTIN
CPUTIN
SYSTIN
+
VREF
2
AVCC
VBAT
VSB
3VCC
048
R
2
,
AGND
whereV
VIN0
VIN1
Pin 102
Pin 103
Pin 104
R4
Pin 117
1
Pin 114
Pin 74
Pin 61
Pin 12
Pin 64
Pin 99
Pin 97
Pin 96
Pin 95
=
Pin 98
Pin 101
−
12
8-bit ADC
8mV LSB
with
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